The issue was caused by NLA evaluation without actions not setting id's flag as updated (as that's happening when action writes data to the ID datablock). Added the same flag set for the NLA evaluation as what's happening for actions.
The issue was caused by NLA evaluation without actions not setting id's flag as updated (as that's happening when action writes data to the ID datablock). Added the same flag set for the NLA evaluation as what's happening for actions.